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Finding the Fourth Proportional to 225,142.39, 310,697.13 and 124,540.39

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Solution

The fourth proportional to 225,142.39, 310,697.13 and 124,540.39 is: 171,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,142.39 : 310,697.13 = 124,540.39 : x
  2. Step 2: Convert to fraction form
    225,142.39/310,697.13 = 124,540.39/x
  3. Step 3: Cross multiply
    225,142.39x = 310,697.13 × 124,540.39
  4. Step 4: Simplify right side
    225,142.39x = 38,694,341,742.08
  5. Step 5: Solve for x
    x = 38,694,341,742.08/225,142.39
  6. Step 6: Final answer
    x = 171,866.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.